Spray nozzle



p 15 93 L. J. WILLIAMS 1,823,635

PRAY NOZZLE Filed May 4, 1929 Patented Sept. 15, 1931 nnsrnn J. WILLIAMS, or CANASTOTA, NE YORK, ASSIGNOR 'ro CARL nnaun ind,

or CANASTO'IA, NEW YORK, A oon-ronA rron 0F new YORK SPRAY Application filed May 4,

withstand hi h )ressure and which will efficiently. aerform its desi ned 3111130863.

.1 l e r In order to clean utensils of the character above described, the nozzle must afford j of comparatively high velocity to break down the caked material and at the same time provide a curtain of sterilant so that substantially all parts of the utensil maybe cleaned. It has been found that very efficientresults are obtainable with the structure shown 1n the accompanying drawings, in wl ich one embodiment of the invention is shown to ai'ford a clear understanding.

of the underlying principles of the invention so that they may be readily understood r those skilled in the art without, however, limiting the invention to the precise details shown in the drawings. l

The structure shown in the drawings (comprehensively stated) comprises a flared expansion chamber, having radially disposed openings or orifices located in the nozzle face for directing a series of jets laterally, and with more vertically directed openings or orifices located near the periphery of th expansion chamber for directing a series of jets upwardly, the laterally directed jets passing between the i "ortically directed jets so as not to impinge on each other, and thus lessen their velocity.

The present invention is more particularly applicable to cleaning. the so called fort-y quart milk cans which usually are passed in inverted position over the nozzles so that the cleansing fluid will continuously drain from the interior of the can. The can part which is least accessible to clean-sing is that in the region of the shoulder; In order to effectively clean this region of the can, the present invention directs a series of powerful jets in a lateral direction so as to impinge near the shoulder and these powerful laterally directed jets are achieved by nozznr.

1929. seriaino, sea-e50.

the unique construction of the central ori ficeswhich arelocated directly opposite to the inlet of the expansion chamber and thus utilize its maximuni pressure head. It is alsoessential that a spray be directed to ward thebottomof the can. Inasmuch as thisportion of the can does not require jets of such high velocity, the periphery of the expansion chamber is uti'lizedfor the jets as will be apparent from an inspection of the drawings. y

In said drawings:

Fig. 1 is a section of the nozzle and its inletpartly fragmentary, on the line 1-1 Fig. 2. V 4 I Fig 2 shows a top plan view of the nozzle; and

Fig. 3 shows a section of Fig. 1 on the line 33. I

Continuing now by way of a more detailed description,- an' expansion chamber A of sub stantially frustro-conical shape flares outwardly froman inlet pip'eB which is threaded in one end of a cylindrical casing C toward the nozzle face. A plurality of radially disposed openingsor orifices D are located near'the center of the nozzle head and in substantially concentric axial alignment with the inlet pipe B. These jet openings 1) have their lower ends communicating with a dished auxiliary mixing or collecting chamber E and diverge to the outer face, terminating in spoon-shaped openings F which form the outlets for the jets. The nozzle head wall is comparatively thick in order to withstand the high pressures used, and the chamber E in conjunction with spoonshape openings]? enables the jets issuing from the spoon-shaped openings to be thrown nearly horizontally and thereby avoid the necessity of the so-called fortyquart milk 7 cans being lowered over the nozzles any appreciable distance. An auxiliary set of peripheral openings G diverge in the expansion head in a direction which corresponds to the surface of a cone having its apex near the inlet orifice of pipe B, the divergence of the last named orifices being less however than the centrally located orifices and are staggered etc With respect to the latter to throw their jets between the'jets thrown from the central orifices to provide a complete fiuid' curtain for Washing the utensils.

It is claimed:

A spray nozzle for Washing dairy utensils or milk cans comprising a casing having a nozzle face at one end anda frusti=oc0nical expansion chamber located Within the casing and-adjacentto the nozzle face, the easing having an inlet orifice at one end of the spray nozzle communicating with said expansion chamber and an auxiliary dished collecting chamber in the nozzle face on the side facing theexpansion chamber, the collecting chamber being coaxially located With respect to the inlet and having its concave side facing said inlet, the nozzle-face having a plurality of radially disposed orifices, each of said orifices having one end communicating with the collecting chamber and the other end terminating in a spoon-shaped depression formedin the face of the nozzle,

7 the spoon shaped depression extending outwardly from the center of tne nozzle face and a plurallty of et orifices disposed 7 around the periphery of the nozzleface and located betweenthe radially disposed orifices terminating in the spoon-shaped depressions so that the jets thrown upwardly by the last named orifices pass between the jets thrown laterally from the radially dis posed orifices terminating in the spoonshaped depressions.

In testimony, whereof, I have signed my name to this specification this 25th day of April, 1929.

LESTER J. WILLIAMS. 

